Jawabanmu

2014-06-02T11:11:52+07:00
Kekelan energy ---->> EP = EK
mgh = 1/2 mv^2

1.10.h = 400
h = 400 / 10
h= 40 meter
Jawaban paling cerdas!
2014-06-02T11:21:32+07:00